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Re: 5.56 barrel length and bullet performance jimmyp #14874514 05/13/20
Joined: Apr 2008 Posts: 1,981 L lotech Campfire Regular
lotech Campfire Regular L Joined: Apr 2008 Posts: 1,981	I've found about a 300 fps difference in muzzle velocity between a 16" Colt barrel and a 23. 5" CZ (bolt-action ) barrel with most loads. I've never seen close to 3300 fps with 55 grain bullets form a 20" barrel, but perhaps it's possible.

GB1

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Title	Posted By	Posted
5.56 barrel length and bullet performance	jimmyp	05/13/20
Re: 5.56 barrel length and bullet performance	rickt300	05/13/20
Re: 5.56 barrel length and bullet performance	lotech	05/13/20
Re: 5.56 barrel length and bullet performance	jimmyp	05/14/20
Re: 5.56 barrel length and bullet performance	Son_of_the_Gael	05/14/20
Re: 5.56 barrel length and bullet performance	bsa1917hunter	05/14/20
Re: 5.56 barrel length and bullet performance	jerrywoodswalker	05/14/20
Re: 5.56 barrel length and bullet performance	jimmyp	05/14/20
Re: 5.56 barrel length and bullet performance	RPnKC	05/19/20
Re: 5.56 barrel length and bullet performance	TWR	05/14/20
Re: 5.56 barrel length and bullet performance	jimmyp	05/14/20
Re: 5.56 barrel length and bullet performance	Sasha_and_Abby	05/18/20
Re: 5.56 barrel length and bullet performance	DigitalDan	05/15/20
Re: 5.56 barrel length and bullet performance	Bluedreaux	05/15/20
Re: 5.56 barrel length and bullet performance	DigitalDan	05/15/20
Re: 5.56 barrel length and bullet performance	MontanaMarine	05/15/20
Re: 5.56 barrel length and bullet performance	jimmyp	05/15/20
Re: 5.56 barrel length and bullet performance	antelope_sniper	05/15/20
Re: 5.56 barrel length and bullet performance	tex_n_cal	05/15/20
Re: 5.56 barrel length and bullet performance	MontanaMarine	05/15/20
Re: 5.56 barrel length and bullet performance	jimmyp	05/15/20
Re: 5.56 barrel length and bullet performance	antelope_sniper	05/15/20
Re: 5.56 barrel length and bullet performance	TWR	05/16/20
Re: 5.56 barrel length and bullet performance	MontanaMan	05/16/20
Re: 5.56 barrel length and bullet performance	MontanaMarine	05/15/20
Re: 5.56 barrel length and bullet performance	antelope_sniper	05/15/20
Re: 5.56 barrel length and bullet performance	MontanaMarine	05/16/20
Re: 5.56 barrel length and bullet performance	MontanaMarine	05/16/20
Re: 5.56 barrel length and bullet performance	jimmyp	05/16/20
Re: 5.56 barrel length and bullet performance	Formidilosus	05/17/20
Re: 5.56 barrel length and bullet performance	jimmyp	05/17/20
Re: 5.56 barrel length and bullet performance	Formidilosus	05/17/20
Re: 5.56 barrel length and bullet performance	jimmyp	05/17/20
Re: 5.56 barrel length and bullet performance	Formidilosus	05/18/20
Re: 5.56 barrel length and bullet performance	antelope_sniper	05/17/20
Re: 5.56 barrel length and bullet performance	MontanaMarine	05/17/20
Re: 5.56 barrel length and bullet performance	Tyrone	05/16/20
Re: 5.56 barrel length and bullet performance	bsa1917hunter	05/17/20
Re: 5.56 barrel length and bullet performance	dznnf7	05/17/20
Re: 5.56 barrel length and bullet performance	DigitalDan	05/17/20
Re: 5.56 barrel length and bullet performance	David_Walter	05/17/20
Re: 5.56 barrel length and bullet performance	jimmyp	05/17/20
Re: 5.56 barrel length and bullet performance	Formidilosus	05/17/20
Re: 5.56 barrel length and bullet performance	deflave	05/17/20
Re: 5.56 barrel length and bullet performance	antelope_sniper	05/17/20
Re: 5.56 barrel length and bullet performance	Spotshooter	05/17/20
Re: 5.56 barrel length and bullet performance	Bluedreaux	05/18/20
Re: 5.56 barrel length and bullet performance	MontanaMan	05/18/20
Re: 5.56 barrel length and bullet performance	antelope_sniper	05/18/20
Re: 5.56 barrel length and bullet performance	Bluedreaux	05/19/20
Re: 5.56 barrel length and bullet performance	MontanaMan	05/19/20
Re: 5.56 barrel length and bullet performance	antelope_sniper	05/19/20
Re: 5.56 barrel length and bullet performance	MontanaMan	05/19/20
Re: 5.56 barrel length and bullet performance	jimmyp	05/20/20
Re: 5.56 barrel length and bullet performance	David_Walter	05/20/20
Re: 5.56 barrel length and bullet performance	jimmyp	05/20/20
Re: 5.56 barrel length and bullet performance	David_Walter	05/20/20
Re: 5.56 barrel length and bullet performance	Yondering	05/22/20

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